thanks Phil, just finally getting to have a look todaythere's loads of 3D stuff therebut that not of interest to me - these following were

Photovault is an image archiving and organization application for photographers. It supports easy searching, annotation, and organization of images, as well as simple image processing operations like cropping and free rotation.

Quote from: http://www.photovault.org/cgi-bin/trac.cgi

* Easily search for your photos based on shooting date or metadata * Annotate your images with additional comments, information about shooting place, technical details or other metadata * Add your photos into unlimited number of folders without using additional disk space * Crop and rotate your photos freely - and always preserve the original image in case you want to revert the operation later * Support for most common image file formats, including raw image formats of most camera manufacturers * Flexible adjustment of conversion from raw image files to "normal" formats, including color balance, hue and contrast settings * Adjust photo color balance and saturation * Written mostly in Java, GPL licensed, runs on Windows, Linux and MacOS X

sometimes it's really hard to tell if programmes use tagging or not....

Xpdf is a viewer for Portable Document Format (PDF) files... The Xpdf project also includes a PDF text extractor, PDF-to-PostScript converter, and various other utilities.It runs under the X Window System on UNIX, VMS, and OS/2. The non-X components (pdftops, pdftotext, etc.) also run on Win32 systems, and should run on pretty much any system with a decent C++ compiler. Xpdf is designed to be small and efficient. It can use Type 1 and TrueType fonts.

.this one sounds nice but unfortunately only Linux, Unix

DigiKam is an advanced digital photo management application that makes importing and organizing digital photos a trivial task. Photos can be organized in albums, which can be sorted chronologically, by directory layout, or by custom collections, and they can be tagged, commented, and rated. DigiKam makes use of a fast and robust database to store meta-information, which makes adding and editing comments and tags very reliable. Metadata can also be stored inside pictures using Exif and IPTC. An embedded image editor and a standalone application named showfoto have simple but powerful features for editing your pictures with filters and correction tools.

& for OSIX, Unix

Endeavour Mark II is a file browser/file manager with an image browser, a recycled objects system, and an archiver front end. It features all the common UNIX file operations for all types of disk objects found the UNIX realm. It also supports disk drive mounting, a fully customizable window appearance, a MIME Types system, and interapplication drag & drop support for KDE and GNOME compatability (although KDE and GNOME are not required).